doi: 10.1111/j.Дi Cerbo AR, Biancardi CM (2013) Monitoring small and arboreal mammals by camera traps: effectiveness and applications. doi: 10.1126/science.1106042ДeLong RL, Stewart BS, Hill RH (1992) Documenting migrations of northern elephant seals using day length. doi: 10.4404/hystrix-24.2-8948Д¬roxall JP, Silk JRD, Phillips RA, Afanasyev V, Briggs DR (2005) Global circumnavigations: tracking year-round ranges of nonbreeding albatrosses. While the inexpensive and tiny light-temperature logger has potential to monitor activity levels of small mammals, care should be taken when analyzing the output.Д«osch S, Lurz PWW (2014) The process of drey construction in red squirrels-nestbox observations based on a hidden camera. In addition, temperature loggers were not always effective during summer when warmer ambient temperature approached the squirrelвЂ™s body temperature. We also found that estimates of daily activity time changed depending on the threshold cut-off values of light intensity and provide a recommendation of 5 to 25В lx for future studies. The new temperature function on the device showed consistently high temperature within the nests (35вЂ“37В вЊ) and suggested additional activity before sunrise the squirrels were primarily diurnal, but occasionally left their nest for short periods (an average of 13В min) during the night. Inside the squirrelвЂ™s nest was dark enough during daylight hours to capture out of nest activity with light intensity, clearly showing daily and seasonal changes in diel activity patterns. In this study, we tested whether a similar method can be applied to arboreal squirrels in temperate regions, by combining light intensity and temperature data. Some recent studies, however, applied tiny light loggers (geolocator) to monitor daily activity levels of small rodents in the southern arctic and far north Holarctic. However, previous studies were limited to relatively large species due to constraints caused by the size of data loggers. Owing to recent advances in technology, biologging has revealed in-depth animal behavior at a level of detail that previously could not be obtained.

Intigeo light logger